Taking A Reading - Elcometer Testex 122 Guia Del Usuario

1 OVERVIEW
Elcometer 122 Testex Tape consists of foam with a non-compressible
backing. The foam side is rubbed into the surface providing a
permanent mould of the peak-to-valley profile. The profile of the
surface can then be measured using a micrometer such as the
Elcometer 124 Foil Thickness Gauge .
Available in four profile ranges, it is important that the tape grade
chosen is reflective of the profile being measured.
For Surface Proles Between
12 - 25µm (0.5 - 1.0mils)
20 - 38µm (0.8 - 1.5mils)
38 - 64µm (1.5 - 2.5mils)
64 - 115µm (2.5 - 4.5mils)
>115µm (4.5mils)
Can be used in accordance with:
ASTM D 4417-C, BS 7079-C5 (superseded), ISO 8503-5, NACE RP0287,
US Navy NSI 009-32, US Navy PPI 63101-000
Replace the '*' at the end of the part number with:
1 = Single Roll, 10 = Pack of 10, 50 = Pack of 50, 100 = Pack of 100

2 TAKING A READING

1 Tear off one section of tape from the roll, peel off the backing tape
and retain the backing for future use.
2 Stick the tape on to the test surface, and rub the central portion
using a swizzle stick , or the end of a pen, pencil or similar
rounded object until dark spots appear. This gives a surface
profile replica.
3 Using a micrometer such as the Elcometer 124 Foil Thickness
a
Gauge , measure the thickness of the central portion of the tape
replica and subtract 50μm (2mils) from the reading. This result is
the peak-to-valley profile height. Write the value on the tape.
4 Replace the backing tape to preserve the imprinted profile for
future reference.
a
The Elcometer 124 Foil Thickness Gauge is available to purchase from Elcometer or your local Elcometer
supplier, see Section 4.
b
Swizzle sticks are available to purchase from Elcometer or your local Elcometer supplier using part number
T12222498.
en-1
R
®
b
a
Tape Grade
Coarse Minus
Coarse
Average of Coarse
and X-Coarse
X-Coarse
X-Coarse Plus
Part Number
E122----A*
E122----B*
E122----B*
E122----C*
E122----C*
E122----F*
www.elcometer.com